I work for an organisation that installs metal grab rails and drop down rails for elderly people maintain their indepenance in their own homes, basically letting them get off the loo or steady themselves when passing through doorways.
As these are metal and are fixed in bathrooms, do they have to be bonded to the earth now?
I believe in the 16th edition of the regs they were specifically mentioned as not needing bonding unless they connected to the metal frame of the building.
these are isolated extraneous parts like door handles/hinges/window latches etc and do not require bonding unless they could be in contact with metalwork outside the room, eg pipes, which under fault conditions could introduce a voltage into the room.
So I believe you are correct,
reg 701.415.2 (iii) refers.
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